O'Reilly Automotive, Inc. is a specialty retailer of automotive aftermarket parts, tools, supplies, equipment and accessories in the United States. The Company sells its products to both do-it-yourself (DIY) and professional service provider customers. The Company's product line includes new and remanufactured automotive hard parts, such as alternators, starters, fuel pumps, water pumps, brake system components, batteries, belts, hoses, temperature control, chassis parts...